Background: The purpose of the present case study is to describe the application of a modification of the Biologically-oriented Alveolar Ridge Preservation (BARP) principles in cases of peri-implant bone dehiscence (PIBD) due to a compromised alveolus at immediate implant placement (IIP).
Methods: The technique is based on the stratification of three layers: a deep layer with a collagen sponge (CS) in the apical part of the alveolus (where the buccal bone plate was still present) to support the blood clot; a graft layer to correct the PIBD; and a superficial collagen layer to cover the graft thus providing space and enhancing clot/graft stability. Healing was obtained by primary closure.
Results: At the re-entry procedure for implant uncovering, a complete PIBD correction with newly formed peri-implant bone up to the level of the polished collar was observed in both cases.
Conclusions: These observations suggest that BARP based on the combined use of CS and deproteinized bovine bone mineral may be regarded as a simplified treatment option to correct a PIBD at IIP.
Key points: Why treat a Peri-Implant Bone Dehiscence (PIBD)? PIBD should be treated to avoid biological and esthetic complications over time. What plays a key role in this case? The stability of both the graft and the cloth is essential for providing space for bone formation to correct the PIBD; the extraction socket supports angiogenic and osteogenic properties; Primary intention closure is crucial to prevent potential infection.
Limitation: the efficacy of the technique must be assessed.
Plain language summary: This case study described the potential to correct a post-extraction osseous defect associated with a substantial portion of a dental implant which resulted exposed and without bone support on its buccal aspect. The application of a novel bone augmentation technique, namely the biologically oriented Alveolar Ridge Preservation, has been described. This simplified procedure is based on the stratification of i) a deep collagen layer in the apical part of the socket to support the blood clot and spontaneous bone formation, ii) a graft of bone substitute to correct the missing bone, and iii) a superficial collagen layer to protect the graft and the wound. After 5 months, a complete correction of the osseous defect with newly formed bone up to the head of the implant was observed in both treated cases.
Background: Hereditary gingival fibromatosis (HGF) is one of the categories of non-plaque-induced gingival diseases of genetic origin. Current studies show high genetic heterogeneity and suggest that not all forms of HGF are the same and that more than one biological mechanism may result in gingival growth. This report presents a case of syndromic HGF with generalized and complex clinical manifestations associated with other conditions such as body hypertrichosis and hearing deficit.
Methods: This is a case report of a male patient with HGF, detailing the orthodontic and periodontal management that began at the age of 8 and was completed by 21.
Results and conclusions: The results of this case report demonstrated the importance of early diagnosis and the establishment of a correct treatment plan that provided, in the long-term, highly positive effects, minimizing impacts affecting the oral health-related quality of life of individuals with HGF.
Key points: This is a case report of a male patient with HGF, detailing the orthodontic and periodontal management that began at age 8 and was completed by age 21. Clinical, genetic, and histological data are reported over the 13 years of follow-up. Due to the numerous complications caused by HGF, early diagnosis and the establishment of an appropriate treatment plan are imperative.
Background: Recombinant human fibroblast growth factor-2 (rhFGF-2) has been shown to effectively promote the formation of new periodontal tissues, and its efficacy has been demonstrated in clinical settings. Moreover, the clinical and radiographic outcomes in the treatment of periodontal infrabony defects can be improved by using rhFGF-2 in combination with a bone substitute. Here, we present a case of four-wall bone defect in a tooth treated by combination regenerative therapy using rhFGF-2 and beta-tricalcium phosphate (β-TCP).
Methods: A 43-year-old male with a four-wall bone defect in tooth #28 was subjected to combination therapy with rhFGF-2 and β-TCP. Periodontal clinical parameters and radiographic images were evaluated at the first visit, after the initial periodontal treatment, and after 4 months and 4 years postoperation.
Results: Although gingival recession and nonvital pulp were observed postoperation, improvements in the periodontal parameters and radiographic outcomes were subsequently recorded.
Conclusion: Periodontal regenerative therapy with a combination of rhFGF-2 and β-TCP showed great potential in the treatment of four-wall bone defects of teeth.
Key points: Periodontal regenerative therapy using recombinant human fibroblast growth factor-2 (rhFGF-2) and beta-tricalcium phosphate (β-TCP) showed immense potential in the treatment of four-wall bone defect in teeth. In addition to using computed tomography for assessing bone defects and root morphologies, an evaluation of root canal morphology and pulp diagnosis is essential for understanding the internal and external aspects of the defect, which would aid in tooth preservation. Appropriate periodontal and endodontic treatments enabled tooth preservation following apical periodontitis after periodontal regenerative therapy.
Plain language summary: This case report focuses on a new approach for the treatment of a four-wall bone defect, a significant dental issue in which the bone around the tooth is damaged, thereby decreasing the stability of the tooth. We treated a 43-year-old male patient with a combination of two key components: the growth factor rhFGF-2, which helps promote the growth of new tissues, and the synthetic bone graft substitute β-TCP, which acts as a substitute for the missing bone. Over the course of 4 years, we monitored the patient's progress using dental exams and X-ray photos. Despite some minor side effects, such as gum recession and the loss of tooth vitality, the overall condition of the tooth and surrounding bone showed significant improvement. This combination therapy shows promise in repairing similar bone defects, which would help save teeth that might otherwise be lost.
Background: This study aimed to assess the relationship of maxillary alveolar bone thickness (BT) and height (BH) with gingival phenotype (GP) in smokers and nonsmokers using cone-beam computed tomography (CBCT).
Methods: This cross-sectional study was conducted on 60 participants. The participants underwent periodontal examination, and their GP was determined by placing a periodontal probe in the gingival sulcus at the midline and observing the transparency. The participants were then assigned to four groups (n = 15) based on their smoking status and GP: thin phenotype/smoker, thick phenotype/smoker, thin phenotype/nonsmoker, and thick phenotype/nonsmoker. BT and BH of the participants were measured in the sagittal plane on CBCT scans at the bone crest and at 2, 4, and 6 mm apical to the crest at the site of maxillary central and lateral incisors. Data were analyzed by two-way ANOVA and LSD test (alpha = 0.05).
Results: The distance between the cementoenamel junction (CEJ) of maxillary central and lateral incisors and alveolar bone crest in smokers was significantly greater than that in nonsmokers (p < 0.001). Smoking had no significant effect on alveolar BT at the crestal level or 2, 4, and 6 mm apical to the crest. BT at the crest and 2, 4, and 6 mm apical to the crest was significantly greater in thick, versus thin, GP (p < 0.001).
Conclusion: Smoking significantly increased the distance between the CEJ and alveolar crest at the site of central and lateral incisors but had no significant effect on BT.
Plain language summary: This study found that smoking significantly increased the distance between the cementoenamel junction and the alveolar bone crest in maxillary incisors but did not affect alveolar bone thickness, which was greater in individuals with a thick gingival phenotype compared to those with a thin gingival phenotype.